Forever the AR15 has been a right handed person's tool. With Ambi controls evolving, it's becoming more of a tool that everyone can use, even left handed shooters! This Ambi Mag Catch works in place of a standard mag catch to allow left handed shooters drop their mag without having to switch to your right hand for the mag release. Easy drop in replacement, and blends in to the style of any AR.

Compatible with all AR15/M16 rifles
Installs the same as factory mag catch
Includes mag release button and spring

Timney AR-15 Targa 2-stage Long First Stage Straight Trigger #663S-ST

A basic problem for plastic magazines is that they have to have a constant curved interior to be molded in one piece. There is no other way. But the magazine well of the M16/AR-15 weapon system is straight. So much compromise has to be reached from a design standpoint to make the two work together.  Side effects of magazines not dropping free, are often seen.